| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 5 | AFC Ajax | 15-04-2021 | Quarter-finals | Match details |
| 5 | BSC Young Boys | 22-10-2020 | Group Section | Match details |
| 3 | AFC Ajax | 08-04-2021 | Quarter-finals | Match details |
| 3 | CSKA Sofia | 29-10-2020 | Group Section | Match details |
| 2 | Manchester United | 06-05-2021 | Semi-finals | Match details |
